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Nelemans LC, Melo VA, Buzgo M, Bremer E, Simaite A. Antibody desolvation with sodium chloride and acetonitrile generates bioactive protein nanoparticles. PLoS One 2024; 19:e0300416. [PMID: 38483950 PMCID: PMC10939210 DOI: 10.1371/journal.pone.0300416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 02/26/2024] [Indexed: 03/17/2024] Open
Abstract
About 30% of the FDA approved drugs in 2021 were protein-based therapeutics. However, therapeutic proteins can be unstable and rapidly eliminated from the blood, compared to conventional drugs. Furthermore, on-target but off-tumor protein binding can lead to off-tumor toxicity, lowering the maximum tolerated dose. Thus, for effective treatment therapeutic proteins often require continuous or frequent administration. To improve protein stability, delivery and release, proteins can be encapsulated inside drug delivery systems. These drug delivery systems protect the protein from degradation during (targeted) transport, prevent premature release and allow for long-term, sustained release. However, thus far achieving high protein loading in drug delivery systems remains challenging. Here, the use of protein desolvation with acetonitrile as an intermediate step to concentrate monoclonal antibodies for use in drug delivery systems is reported. Specifically, trastuzumab, daratumumab and atezolizumab were desolvated with high yield (∼90%) into protein nanoparticles below 100 nm with a low polydispersity index (<0.2). Their size could be controlled by the addition of low concentrations of sodium chloride between 0.5 and 2 mM. Protein particles could be redissolved in aqueous solutions and redissolved antibodies retained their binding activity as evaluated in cell binding assays and exemplified for trastuzumab in an ELISA.
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Affiliation(s)
- Levi Collin Nelemans
- R&D Center, InoCure s.r.o, Celákovice, Central Bohemian, Czech Republic
- Department of Hematology, University Medical Center Groningen/University of Groningen, Groningen, Groningen, The Netherlands
| | - Vinicio Alejandro Melo
- Department of Hematology, University Medical Center Groningen/University of Groningen, Groningen, Groningen, The Netherlands
| | - Matej Buzgo
- R&D Center, InoCure s.r.o, Celákovice, Central Bohemian, Czech Republic
| | - Edwin Bremer
- Department of Hematology, University Medical Center Groningen/University of Groningen, Groningen, Groningen, The Netherlands
| | - Aiva Simaite
- R&D Center, InoCure s.r.o, Celákovice, Central Bohemian, Czech Republic
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Vrobel O, Tarkowski P. Can plant hormonomics be built on simple analysis? A review. PLANT METHODS 2023; 19:107. [PMID: 37833752 PMCID: PMC10576392 DOI: 10.1186/s13007-023-01090-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/08/2023] [Indexed: 10/15/2023]
Abstract
The field of plant hormonomics focuses on the qualitative and quantitative analysis of the hormone complement in plant samples, akin to other omics sciences. Plant hormones, alongside primary and secondary metabolites, govern vital processes throughout a plant's lifecycle. While active hormones have received significant attention, studying all related compounds provides valuable insights into internal processes. Conventional single-class plant hormone analysis employs thorough sample purification, short analysis and triple quadrupole tandem mass spectrometry. Conversely, comprehensive hormonomics analysis necessitates minimal purification, robust and efficient separation and better-performing mass spectrometry instruments. This review summarizes the current status of plant hormone analysis methods, focusing on sample preparation, advances in chromatographic separation and mass spectrometric detection, including a discussion on internal standard selection and the potential of derivatization. Moreover, current approaches for assessing the spatiotemporal distribution are evaluated. The review touches on the legitimacy of the term plant hormonomics by exploring the current status of methods and outlining possible future trends.
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Affiliation(s)
- Ondřej Vrobel
- Department of Biochemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
- Czech Advanced Technology and Research Institute, Palacky University, Olomouc, Czech Republic
- Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Olomouc, Czech Republic
| | - Petr Tarkowski
- Czech Advanced Technology and Research Institute, Palacky University, Olomouc, Czech Republic.
- Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Olomouc, Czech Republic.
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Chi MC, Liao TY, Lin MG, Lin LL, Wang TF. Expression and physicochemical characterization of an N-terminal polyhistidine-tagged phosphotriesterase from the soil bacterium Brevundimonas diminuta. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101811] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Gunasekera RS, Galbadage T, Ayala-Orozco C, Liu D, García-López V, Troutman BE, Tour JJ, Pal R, Krishnan S, Cirillo JD, Tour JM. Molecular Nanomachines Can Destroy Tissue or Kill Multicellular Eukaryotes. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13657-13670. [PMID: 32091877 PMCID: PMC8189693 DOI: 10.1021/acsami.9b22595] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Light-activated molecular nanomachines (MNMs) can be used to drill holes into prokaryotic (bacterial) cell walls and the membrane of eukaryotic cells, including mammalian cancer cells, by their fast rotational movement, leading to cell death. We examined how these MNMs function in multicellular organisms and investigated their use for treatment and eradication of specific diseases by causing damage to certain tissues and small organisms. Three model eukaryotic species, Caenorhabditis elegans, Daphnia pulex, and Mus musculus (mouse), were evaluated. These organisms were exposed to light-activated fast-rotating MNMs and their physiological and pathological changes were studied in detail. Slow rotating MNMs were used to control for the effects of rotation rate. We demonstrate that fast-rotating MNMs caused depigmentation and 70% mortality in C. elegans while reducing the movement as well as heart rate and causing tissue damage in Daphnia. Topically applied light-activated MNMs on mouse skin caused ulceration and microlesions in the epithelial tissue, allowing MNMs to localize into deeper epidermal tissue. Overall, this study shows that the nanomechanical action of light-activated MNMs is effective against multicellular organisms, disrupting cell membranes and damaging tissue in vivo. Customized MNMs that target specific tissues for therapy combined with spatial and temporal control could have broad clinical applications in a variety of benign and malignant disease states including treatment of cancer, parasites, bacteria, and diseased tissues.
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Affiliation(s)
| | - Thushara Galbadage
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, Texas 77807, United States
| | - Ciceron Ayala-Orozco
- Department of Experimental Oncology, MD Anderson Cancer Center, Houston, Texas 77030, United States
| | | | | | | | - Josiah J Tour
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, Texas 77807, United States
| | - Robert Pal
- Department of Chemistry, Durham University, South Road, DH1 3LE Durham, United Kingdom
| | - Sunil Krishnan
- Department of Experimental Oncology, MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Jeffrey D Cirillo
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, Texas 77807, United States
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Yan C, Huang X, Chen J, Guo H, Shao H. Study on Preferential Solvation of Water by Electrochemical Method. ELECTROANAL 2019. [DOI: 10.1002/elan.201900243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chunxia Yan
- Beijing Key Laboratory of Photoelectronic and Electrophotonic Conversion Materials, Key Laboratory of Cluster Science (Ministry of Education), School of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 102488 P.R. China
| | - Ximing Huang
- Beijing Key Laboratory of Photoelectronic and Electrophotonic Conversion Materials, Key Laboratory of Cluster Science (Ministry of Education), School of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 102488 P.R. China
| | - Jingchao Chen
- Beijing Key Laboratory of Photoelectronic and Electrophotonic Conversion Materials, Key Laboratory of Cluster Science (Ministry of Education), School of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 102488 P.R. China
| | - Haixia Guo
- Beijing Key Laboratory of Photoelectronic and Electrophotonic Conversion Materials, Key Laboratory of Cluster Science (Ministry of Education), School of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 102488 P.R. China
| | - Huibo Shao
- Beijing Key Laboratory of Photoelectronic and Electrophotonic Conversion Materials, Key Laboratory of Cluster Science (Ministry of Education), School of Chemistry and Chemical EngineeringBeijing Institute of Technology Beijing 102488 P.R. China
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Sirotkin VA, Kuchierskaya AA. α-chymotrypsin in water-acetone and water-dimethyl sulfoxide mixtures: Effect of preferential solvation and hydration. Proteins 2017; 85:1808-1819. [PMID: 28612358 DOI: 10.1002/prot.25334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/02/2017] [Accepted: 06/07/2017] [Indexed: 11/10/2022]
Abstract
We investigated water/organic solvent sorption and residual enzyme activity to simultaneously monitor preferential solvation/hydration of protein macromolecules in the entire range of water content at 25°C. We applied this approach to estimate protein destabilization/stabilization due to the preferential interactions of bovine pancreatic α-chymotrypsin with water-acetone (moderate-strength H-bond acceptor) and water-DMSO (strong H-bond acceptor) mixtures. There are three concentration regimes for the dried α-chymotrypsin. α-Chymotrypsin is preferentially hydrated at high water content. The residual enzyme activity values are close to 100%. At intermediate water content, the dehydrated α-chymotrypsin has a higher affinity for acetone/DMSO than for water. Residual enzyme activity is minimal in this concentration range. The acetone/DMSO molecules are preferentially excluded from the protein surface at the lowest water content, resulting in preferential hydration. The residual catalytic activity in the water-poor acetone is ∼80%, compared with that observed after incubation in pure water. This effect is very small for the water-poor DMSO. Two different schemes are operative for the hydrated enzyme. At high and intermediate water content, α-chymotrypsin exhibits preferential hydration. However, at intermediate water content, in contrast to the dried enzyme, the initially hydrated α-chymotrypsin possesses increased preferential hydration parameters. At low water content, no residual enzyme activity was observed. Preferential binding of DMSO/acetone to α-chymotrypsin was detected. Our data clearly demonstrate that the hydrogen bond accepting ability of organic solvents and the protein hydration level constitute key factors in determining the stability of protein-water-organic solvent systems.
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Affiliation(s)
- Vladimir A Sirotkin
- Department of Physical Chemistry, Kazan Federal University, A.M. Butlerov Institute of Chemistry, Kazan, 420008, Russia
| | - Alexandra A Kuchierskaya
- Department of Physical Chemistry, Kazan Federal University, A.M. Butlerov Institute of Chemistry, Kazan, 420008, Russia
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